Improvement in clamps



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Y vClamps. No. 140,136. Paremedlunezmss.

NICHOLAS J. BOLT, OF HOWELL, AND JOHN LEAUH, OF DETROIT, MIUHIGA.

.iwireevervieitr uit theres.

Specicetion forming part of Letters Patent No. lMiOJllha, dsted June 24,1873; application filed April 24, 1973.

To all whom 'it may concern.:

Be itlmown that we, NICHOLAS J. BOLT, of Howell, in the county ofLivingston and V Stute of Michigan, and JOHN Lesen, of De troit, iu thecounty of Wayne and State of Michigan, have invented a new and usefulImprovement in Clamps; and We do declare that the following is e trueand accurate description thereof, reference being hadto the accompanyingdrawings and to the letters of reference marked thereon and being a.part of this specification, in Which-- several. parts, as is more fullyhereinafter set forth.

In the drawing, A A represent triangular hers, both hollow on theirunder feces, and the letter adapted to slide over the former, each barbeing hooked at the outer end, as shown. The inner end of the ber A isprovided with Ye Lvolte, B, through which the bar A slides. In s recessor in a, socket in the top of the yoke I pivot the lower end of a.lever, C, in a slot in which, above the pivot, passes one end of e bar,D, whose other end is pivoted to :t pin, a', transversely insertedthrough e longi tudinal slot in the back of the bar A. There are severalpin-holes through the slot in this flier, through either of which thesaid pin may be inserted to increase or decrease the space between thejaws of the clamp. When thrown down over the bar A the lever C acts as acam, to drew the clainphars together.

The inner faces of the jaws may be grooved or recessed to recei\` jrubber or leather facings to prevent the marring of the articles whichare clamped together bythis device.

What we claim as our invention, and desire to secure by Letters Patent,is

The clamp-ber A having the pivotcd lever U with bar D attached thereto,in combination with the sliding clamp-bar A', as described.'l

' NICHOLAS J. BOLT. Witnesses: J OHN LEACH.

H. S. SPRAGUE, H. F. Eunnrs.

